Preferential right-of-way at an intersection may be indicated by stop signs or yield signs placed in accordance with the Maryland Vehicle Law. If the driver of a vehicle approaches a through highway, the driver shall: Stop at the entrance to the through highway; and Yield the right-of-way to any other vehicle approaching on the through highway. If a stop sign is placed at the entrance to an intersecting highway, even if the intersecting highway is not part of a through highway, the driver of a vehicle approaching the intersecting highway shall: Stop in obedience to the stop sign; and Yield the right-of-way to any other vehicle approaching on the intersecting highway. If a “yield” sign facing the driver of a vehicle is placed on the approach to an intersection, the driver shall: Approach the intersection with caution; Yield the right-of-way to any other vehicle approaching on the other highway; and If necessary, stop in order to yield this right-of-way.